APC GALAXY 5000 - Manual (Page 25)

34001813EN/AE - Page 25
2. Installation
Redundant parallel configuration (maximum two UPS units for Pn)
This configuration does not have an external bypass.
UPS units with common normal and Bypass AC inputs
To access the connection terminal blocks, see section 1.2.
UPS units with separate normal and Bypass AC inputs
To access the connection terminal blocks,
see section 1.2.
1 - The earthing conductors must be
connected to the earthing plate of each UPS.
2 - Connect the four conductors of the Bypass
AC source to terminal block (15) in each UPS
unit.
3 - Connect the three phases of the Normal
AC input (16) with the three phases of the
Bypass AC input (15) in each UPS unit.
4 - Connect the four conductors of the
supplied loads to terminal block (14) in UPS1.
5 - Connect terminal block (14) in UPS2 to
terminal block (14) in UPS1 using the four
load conductors.
6 - Tie the cables down to the cabinet frames.
7 - Put the covers back in place (see section
1.2).
To access the connection terminal blocks,
see section 1.2.
1 - The earthing conductors must be
connected to the earthing plate of each UPS.
2 - Connect the three phases of the Normal
AC source to terminal block (16) in each UPS
unit.
3 - Connect the four conductors of the Bypass
AC source to terminal block (15) in each UPS
unit.
4 - Connect the four conductors of the
supplied loads to terminal block (14) in UPS1.
5 - Connect terminal block (14) in UPS2 to
terminal block (14) in UPS1 using the four
load conductors.
6 - Tie the cables down to the cabinet frames.
7 - Put the covers back in place (see section
1.2).
Caution. If the two UPSs are placed side by side, connect as indicated above. In the other configurations, always make sure
that the cables between the UPSs and Bypass AC source have the same cross-section and the same length. The same is
true for the cables between the UPSs and the load.
14 16 15
17 18
14 16 15
17 18
N L1 L2 L3 N L1 L2 L3 L1 L2 L3
370 mm
N L1 L2 L3 N L1 L2 L3 L1 L2 L3
400 mm
N L1 L2 L3 N L1 L2 L3 L1 L2 L3
370 mm
To load To load To load To load To normal / bypass
AC source
UPS 1 UPS 2
14 16 15
17 18
14 16 15
17 18
N L1 L2 L3 N L1 L2 L3 L1 L2 L3
370 mm 370 mm
N L1 L2 L3 N L1 L2 L3 L1 L2 L3 N L1 L2 L3 N L1 L2 L3 L1 L2 L3
To load To bypass
AC source To normal
AC source
UPS 1 UPS 2